(a) Ice sheets are the largest expanses of ice covering large areas of land completely and permanently.
(b) Nunataks are high peaks that project through ice sheets especially on the margins of coasts
(c) Ice sheets are thick and can be as thick as 4000 metres
(d) Antarctica ice sheet
Greenland ice sheet
Faimus answered the question on March 13, 2018 at 12:28
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